Pregnancy problems
Learning Center
Brain tumor
Find out more about the different types, signs, symptoms and causes of brain tumors, which are growths of cells in the brain.
COPD
This chronic inflammatory lung disease causes obstructed airflow from the lungs, resulting in breathing difficulty, cough, mucus production and wheezing.
Caffeine: How does it affect blood pressure?
Caffeinated drinks can raise blood pressure in the short term. But the long-term effects on blood pressure aren't clear.
Cancer
Find out the basics about cancer, including symptoms, causes and treatments. Learn steps you can take to prevent cancer.
Cancer causes: Popular myths about the causes of cancer
Get the facts and find out why these popular myths about cancer causes are wrong.
Cervical length: Why does it matter during pregnancy?
If cervical length during pregnancy shortens too soon, there might be an increased risk of preterm labor.
Chickenpox
Learn more about preventing this once-common childhood illness. Also, find out how to recognize and manage it.
Chickenpox and pregnancy: What are the concerns?
Understand the risks posed by chickenpox during pregnancy.
Circumcision (male)
Learn about the benefits and risks of surgery to remove the skin that covers the tip of the penis.
Cluster headache
These painful headaches cause severe pain on one side of the head and tend to occur in bouts called cluster periods.